CLASS III. ARACHNOID A. 
n7 
** Eyes not describing the segment of a circle. Maxilla straight , 
with their points dilated. 
Genus 17. TETRAGNATIIA. Latreille, Leach, 
tyes subequal ; disposed in two straight and almost parallel transverse 
lines, the four middle ones forming nearly a regular quadrangle : 
maxilla straight, elongate and narrow, almost equally broad ; the 
apex externally dilated and round : lip semicircular and somewhat 
notched: legs very long and very slender; the first pair longest, then 
the second, afterwards tire fourth. . 
8 P- 1. Tet. extensa. Reddish; abdomen oblong, golden green, with 
the sides and two lines below yellowish; the middle below longitu- 
dinally black. 
Ar anea extensa. Linn., I'obr. Tetragnatha extensa. Latr., Walds., Teach. 
Inhabits Europe; frequenting moist places, in which it constructs a 
v ertical web, sitting on it with its legs extended. 
Genus 13. EPEIRA. Walckender, Latreille, Leach. 
■Latreille has divided this genus into sections, most of which would 
form good genera. 
$yes with the four middle ones placed on an abruptly formed tubercle 
>n the form of a quadrangle, the two anterior ones largest and most 
distant; the lateral eyes on each side subgeminated and placed ob- 
liquely on a tubercle: maxilla subcircular, internally membrana- 
ceous : Up semicircular; short, with 1:be point membranaceous . legs 
moderately long, hispid, the thighs rather strong; the first pair 
largest, then the second, afterwards the fourth pair: thorax inversely 
elongate subcortlate, anteriorly broadly truncated : abdomen subglo- 
hose, large, much broader than tire thorax. 
S M. Ep. Diadema. Reddish; abdomen globose-oval, with an elevated 
angle on each side of its base; dorsal band broad, triangvdai, deb- 
ated, darker, with a triple cross of luteous white dots or spots, and 
"nth four impressed dots disposed in a quadrangle. 
■^fanea Diadema. Linn. Araignee a croix. J)e Geer. Epeira Dia» 
. J e Ha. Walck., Latr., Leach. 
mhabits Europe. It frequents the borders of woods, rocks, and gar. 
( ' e ns, and is well known in Britain by the names Sceptre or Giadwn 
spider. 
*** Eyes describing the segment of a circle. 
Genus 19. THOMISUS. Watch.., Latr., Leach. HetejiopoDa, 
LeUf. Misumena. Latr. 
Ej/es generally subequal, placed in two transverse lines in a kind of 
semicircle:' maxilla oblique, covering the side of the lip and m some 
degree converging; the internal apex truncate : lip somewhat oval 
